The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2013
Filed:
Feb. 18, 2011
Eduardo Altschuler, Buenos Aires, AR;
Teresa Perez, Buenos Aires, AR;
Edgardo Lopez, Bergamo, IT;
Constantino Espinosa, Buenos Aires, AR;
Gonzalo Gomez, Buenos Aires, AR;
Eduardo Altschuler, Buenos Aires, AR;
Teresa Perez, Buenos Aires, AR;
Edgardo Lopez, Bergamo, IT;
Constantino Espinosa, Buenos Aires, AR;
Gonzalo Gomez, Buenos Aires, AR;
Siderca S.A.I.C., Ciudad Autónoma de Buenos Aires, AR;
Abstract
Embodiments of the present disclosure comprise carbon steels and methods of manufacture. In one embodiment, a double austenizing procedure is disclosed in which a selected steel composition is formed and subjected to heat treatment to refine the steel microstructure. In one embodiment, the heat treatment may comprise austenizing and quenching the formed steel composition a selected number of times (e.g., 2) prior to tempering. In another embodiment, the heat treatment may comprise subjecting the formed steel composition to austenizing, quenching, and tempering a selected number of times (e.g., 2). Steel products formed from embodiments of the steel composition in this manner (e.g., seamless tubular bars and pipes) will possess high yield strength, at least about 175 ksi (about 1200 MPa) while maintaining good toughness.